Sexually transmitted infections (also known as STIs or STDs) are infections that are spread through sexual contact and cause a range of symptoms. STIs are caused by various types of bacteria, fungi, viruses, and parasites. Get tested and treated for STIs right away to reduce the spread of infection and avoid or delay serious complications.
Anyone who is sexually active can get a STD.
You can have an STD even if you don’t have symptoms.
STDs are preventable.
How STDs Are Spread
You can get STDs during vaginal, anal (butt) or oral (mouth) sex. STDs can be transmitted through the exchange of blood, semen and vaginal fluids, or through skin contact. There are things you can do to prevent STDs.
Signs & Symptoms of STDs
Many people do not have any symptoms, but here are some more common symptoms you might experience: